CN108795204A - Aluminium section bar made from a kind of aluminium section bar electrophoretic paint, preparation method and electrophoresis - Google Patents
Aluminium section bar made from a kind of aluminium section bar electrophoretic paint, preparation method and electrophoresis Download PDFInfo
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- CN108795204A CN108795204A CN201810536411.0A CN201810536411A CN108795204A CN 108795204 A CN108795204 A CN 108795204A CN 201810536411 A CN201810536411 A CN 201810536411A CN 108795204 A CN108795204 A CN 108795204A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/44—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications
- C09D5/4407—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications with polymers obtained by polymerisation reactions involving only carbon-to-carbon unsaturated bonds
- C09D5/4411—Homopolymers or copolymers of acrylates or methacrylates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
- C08F8/30—Introducing nitrogen atoms or nitrogen-containing groups
- C08F8/32—Introducing nitrogen atoms or nitrogen-containing groups by reaction with amines
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/44—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications
- C09D5/448—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications characterised by the additives used
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D13/00—Electrophoretic coating characterised by the process
- C25D13/04—Electrophoretic coating characterised by the process with organic material
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1804—C4-(meth)acrylate, e.g. butyl (meth)acrylate, isobutyl (meth)acrylate or tert-butyl (meth)acrylate
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- Polymers & Plastics (AREA)
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Abstract
The invention discloses aluminium section bar made from a kind of aluminium section bar electrophoretic paint, preparation method and electrophoresis, the electrophoretic paint includes following raw material：Acrylic acid, methyl methacrylate, butyl acrylate, hydroxyethyl methacrylate, glycerin monomethyl acrylic ester, trimethylol-propane trimethacrylate, ethoxyquin trimethylol-propane trimethacrylate and ethoxylated bisphenol A dimethylacrylates.Using the electrophoretic paint provided in the present invention through electrophoretic process aluminium section bar, anodic oxidation can be saved and colour this two high energy consumption processes, energy conservation and environmental protection, stable quality.
Description
Technical field
The present invention relates to the technical field of surface of aluminium section bar, and in particular to a kind of aluminium section bar electrophoretic paint, its preparation
Aluminium section bar made from method and electrophoresis.
Background technology
With flourishing for national economy, currently, China is aluminium consumption big country.Electrophoretic painting is the metal that will be applied
Product is immersed in electrophoretic coating by product after the pre-treatments such as oil removing, cleaning, surface adjustment, phosphatization, pure water cleaning, is led to straight
Under galvanic electricity certain time, uniform water-insoluble film is precipitated on coated article, film has extremely strong anticorrosive after drying
Performance, to extend the service life of product.Before the preparation process of the aluminium alloy extrusions of common electrophoretic paint application generally comprises
Processing-anodic oxidation-coloring-electrophoresis-cures these steps, and as the environmentally friendly of people is constantly reinforced with awareness of saving energy,
How under the premise of ensureing product quality, some high energy consumption processes in the preparation process of aluminium alloy extrusions are reduced, to reach
To the purpose of environmental protection and energy saving.It would therefore be highly desirable to innovate a kind of preparation process of new electrophoretic aluminium section, in the prior art ask is solved
Topic.
Invention content
What it is it is an object of the invention to solution is process present in existing aluminium alloy section surface electrophoretic coating technique
Complexity, high energy consumption process is more, the defect of inadequate environmental protection and energy saving, thus provides a kind of aluminium section bar electrophoretic paint, preparation method
And aluminium section bar made from electrophoresis.
The present invention provides a kind of aluminium section bar electrophoretic paint, the electrophoretic paint includes following raw material：Acrylic acid, metering system
Sour methyl esters, butyl acrylate, hydroxyethyl methacrylate, glycerin monomethyl acrylic ester, trimethylol propane trimethyl propylene
Acid esters, ethoxyquin trimethylol-propane trimethacrylate and ethoxylated bisphenol A dimethylacrylates.
Preferably, the electrophoretic paint each component includes by weight percentage：Acrylic acid 2-4%, methyl methacrylate
10-20%, butyl acrylate 20-30%, hydroxyethyl methacrylate 6-10%, glycerin monomethyl acrylic ester 6.5-
12.5%, trimethylol-propane trimethacrylate 3-7%, ethoxyquin trimethylol-propane trimethacrylate 5-9%
With ethoxylated bisphenol A dimethylacrylates 2.5-6.5%.
Preferably, in the electrophoretic paint further include polymerisation buffering solvent, amino resins, the tertiary fourth of perbenzoic acid
Ester and chromium sulfate.
Preferably, the buffering solvent includes isopropanol and ethylene glycol ethyl ether.
Preferably, by weight percentage, the isopropanol is 1-3%, ethylene glycol ethyl ether 1-3%, amino resins 10-
24%, peroxidized t-butyl perbenzoate 0.8-1.6% and chromium sulfate 1.2-2.4%.
In addition, also providing a kind of preparation method of aluminium section bar electrophoretic paint, include the following steps：
1) corresponding proportioning is pressed by acrylic acid, methyl methacrylate, butyl acrylate, hydroxyethyl methacrylate, glycerine
Monomethacrylates, trimethylol-propane trimethacrylate, ethoxyquin trimethylol-propane trimethacrylate and
Ethoxylated bisphenol A dimethylacrylates are added to the reaction equipped with isopropanol, ethylene glycol ethyl ether and the chromium sulfate accordingly matched
In container, under the catalysis of the catalyst peroxidized t-butyl perbenzoate accordingly matched, it is stirred to react 8-16h；
2) when the temperature in step 1) being down to 50-80 DEG C, dimethylaminoethanol progress soap is added into reaction vessel
Change reaction into water solubility；
3) amino resins is added into step 2), adds the viscosity and solid content of solvent adjustment reaction mixture, fully
2-6h is stirred to get to the electrophoretic paint.
Preferably, adjustment viscosity and the solvent used in solid content are the isopropanol and the ethylene glycol ethyl ether.
In addition, also providing a kind of aluminium section bar, the aluminium section bar uses the aluminium section bar electrophoretic paint through electrophoretic process
It is prepared.
Preferably, include the electrophoretic paint, and paint in the electrophoresis step in the processing of the aluminium section bar, in electrophoresis tank
Gu ingredient is 6-8g/L, toner 1-3kg, the PH of tank liquor is 5.8-8.0, and amine value 0.2-0.4, electrophoresis temperature is 20-30 DEG C,
350-1000us/cm, time 60-220s, voltage 90-180V when 25 DEG C of conductivity.
The beneficial effects of the present invention are：A kind of aluminium section bar electrophoretic paint and preparation method thereof of the present invention, by adjusting
The composition and preparation method of electrophoretic paint in electrophoresis tank, are processed aluminium section bar using the electrophoretic paint, can save
Anodic oxidation in electrophoresis process and this two high energy consumption processes of coloring, not only energy conservation and environmental protection, reduces the discharge of waste water, also pole
Big shortens the production time, applicable in each aluminium alloy extrusions manufacturer, it is processed after aluminium section bar stable quality, table
Face mask layer corrosion resistance is high, and weather-proof length, surface color and polish is more, fitment material for family high selectivity.
Specific implementation mode
With reference to embodiment, the present invention is described in further detail, and embodiments of the present invention are not limited thereto.
Embodiment 1
A kind of aluminium section bar electrophoretic paint, the electrophoretic paint include following raw material：AA：Acrylic acid, MMA：Methyl methacrylate
Ester, BA：Butyl acrylate, HEMA：Hydroxyethyl methacrylate, GMMA：Glycerin monomethyl acrylic ester, TMPTMA：Three hydroxyl first
Base propane trimethyl acrylic ester, TMP (3EO) TMA：Ethoxyquin trimethylol-propane trimethacrylate and E30BADMA：
Ethoxylated bisphenol A dimethylacrylates.
The electrophoretic paint each component includes by weight percentage：AA2-4%, MMA10-20%, BA20-30%,
HEMA6-10%, GMMA6.5-12.5%, TMPTMA3-7%, TMP (3EO) TMA5-9% and E30BADMA2.5-6.5%；
Further include polymerisation buffering solvent, amino resins, TBPB in the electrophoretic paint：Peroxidized t-butyl perbenzoate
And BCS：Chromium sulfate.
The buffering is IPA with solvent：Isopropanol and ECS：Ethylene glycol ethyl ether.
By weight percentage, the electrophoretic paint include IPA1-3%, ECS1-3%, amino resins 10-24%,
TBPB0.8-1.6% and BCS1.2-2.4%.
In another embodiment, a kind of preparation method of aluminium section bar electrophoretic paint is also provided, is included the following steps：
1) corresponding proportioning is pressed to add AA, MMA, BA, HEMA, GMMA, TMPTMA, TMP (3EO) TMA, E30BADMA and BCS
Enter into the reaction vessel equipped with the IPA and ECS that accordingly match, under the catalysis of the TBPB accordingly matched, is sufficiently stirred reaction
8-16h；
2) when the temperature in step 1) being down to 50-80 DEG C, DMAE is added into reaction vessel：Dimethylaminoethanol into
Row saponification is at water solubility；
3) it to amino resin crosslinking agent is added in step 2), adds the viscosity of solvent adjustment reaction mixture and contains admittedly
Amount is sufficiently stirred 2-6h to get to the electrophoretic paint.
It is the isopropanol and the ethylene glycol ethyl ether that viscosity, which is adjusted, with the solvent used in solid content.
In another embodiment, a kind of aluminium section bar is also provided, the aluminium section bar uses the aluminium section bar electrophoretic paint
It is prepared through electrophoretic process.
Include the electrophoretic paint, and the solid ingredient of paint in electrophoresis step in the processing of the aluminium section bar, in electrophoresis tank
PH for 6-8g/L, toner 1-3kg, tank liquor is 5.8-8.0, and amine value 0.2-0.4, electrophoresis temperature is 20-30 DEG C, conductivity
350-1000us/cm at 25 DEG C, time 60-220s, voltage 90-180V.
The preparation of electrophoretic paint adds the high-performance propylene of multiple multiple functional radicals using traditional acrylic monomers in the present invention
More reticular structures are formed when so that paint film is crosslinked after the reasonable interworking synthesis of acid monomers, it is high rigidity, high glaze, high attachment to highlight performance
Power, the excellent water-soluble electrophoretic paint of chemical-resistance so that aluminium workpiece needs not move through the high pollution of Conventional process, high energy
The oxidation of consumption, tinting steps can still have identical even preferably adhesive force and weather resistance.
And by adjusting the composition and preparation method of the electrophoretic paint in electrophoresis tank, anodic oxidation can be saved and colour this two
Item high energy consumption process, not only energy conservation and environmental protection, reduces the discharge of waste water, also greatly shortens the production time, in each aluminium alloy
Proximate matter manufacturer is applicable, it is processed after aluminium section bar stable quality, superficial film corrosion resistance is high, weather-proof length, surface
Color is more, fitment material for family high selectivity.
Embodiment 2
On the basis of embodiment 1, the present invention proposes a kind of aluminium section bar electrophoretic paint, and the electrophoretic paint is by weight percentage
Meter includes following raw material：AA3%, MMA 15%, BA 25%, HEMA8%, GMMA9.5%, TMPTMA5%, TMP (3EO)
TMA7%, E30BADMA4.5%, IPA1.5%, ECS1.5%, amino resins 17%, TBPB 1.2% and BCS1.8%.
The preparation method of aluminium section bar electrophoretic paint, includes the following steps：
1) corresponding proportioning is pressed to add AA, MMA, BA, HEMA, GMMA, TMPTMA, TMP (3EO) TMA, E30BADMA and BCS
Enter into the reaction vessel equipped with the IPA and ECS that accordingly match, under the catalysis of the TBPB accordingly matched, is sufficiently stirred reaction
12h；
2) when the temperature in step 1) being down to 65 DEG C, DMAE is added into reaction vessel：Dimethylaminoethanol carries out
Saponification is at water solubility；
3) it to amino resin crosslinking agent is added in step 2), adds the viscosity of solvent adjustment reaction mixture and contains admittedly
Amount is sufficiently stirred 4h to get to the electrophoretic paint.
Embodiment 3
On the basis of embodiment 1, the present invention proposes a kind of aluminium section bar electrophoretic paint, and the electrophoretic paint is by weight percentage
Meter includes following raw material：AA2%, MMA 10%, BA 20%, HEMA6%, GMMA6.5%, TMPTMA7%, TMP (3EO) TMA
9%, E30BADMA6.5%, IPA3%, ECS3%, amino resins 24%, TBPB 1% and BCS2%.
The preparation method of aluminium section bar electrophoretic paint, includes the following steps：
1) corresponding proportioning is pressed to add AA, MMA, BA, HEMA, GMMA, TMPTMA, TMP (3EO) TMA, E30BADMA and BCS
Enter into the reaction vessel equipped with the IPA and ECS that accordingly match, under the catalysis of the TBPB accordingly matched, is sufficiently stirred reaction
8h；
2) when the temperature in step 1) being down to 50 DEG C, DMAE is added into reaction vessel：Dimethylaminoethanol carries out
Saponification is at water solubility；
3) it to amino resin crosslinking agent is added in step 2), adds the viscosity of solvent adjustment reaction mixture and contains admittedly
Amount is sufficiently stirred 2h to get to the electrophoretic paint.
Embodiment 4
On the basis of embodiment 1, the present invention proposes a kind of aluminium section bar electrophoretic paint, and the electrophoretic paint is by weight percentage
Meter includes following raw material：AA 4%, MMA 20%, BA 29%, HEMA 10%, GMMA12.5%, TMPTMA 3%, TMP
(3EO) TMA 5%, E30BADMA2.5%, IPA1%, ECS1%, amino resins 10%, TBPB 0.8% and BCS1.2%.
The preparation method of aluminium section bar electrophoretic paint, includes the following steps：
1) corresponding proportioning is pressed to add AA, MMA, BA, HEMA, GMMA, TMPTMA, TMP (3EO) TMA, E30BADMA and BCS
Enter into the reaction vessel equipped with the IPA and ECS that accordingly match, under the catalysis of the TBPB accordingly matched, is sufficiently stirred reaction
16h；
2) when the temperature in step 1) being down to 80 DEG C, DMAE is added into reaction vessel：Dimethylaminoethanol carries out
Saponification is at water solubility；
3) it to amino resin crosslinking agent is added in step 2), adds the viscosity of solvent adjustment reaction mixture and contains admittedly
Amount is sufficiently stirred 6h to get to the electrophoretic paint.
The electrophoretic paint is used to carry out aluminium section bar electrophoretic process in easy pole electrophoresis production technology, which produces work
Skill includes mainly blank restocking, oil removing, first wash, alkaline etching, second wash, removes stain ash disposal, third time washing, pure water
Wash, hot pure water is washed, pure water is washed, major trough electrophoresis, the 4th washing, the 5th washing, drip-dry, the roasting solidification of stove, finished product undercarriage, specifically
Steps are as follows：
(1) blank restocking
By Extrusion Process of Aluminum Alloy Profile blank restocking.
(2) oil removing
Oil removal treatment is carried out to Extrusion Process of Aluminum Alloy Profile blank, degreaser is sulfuric acid 140-180g/L, processing time 6-
12min carries out first wash later except oil temperature is 25-35 DEG C.
(3) alkaline etching
Aluminium section bar of the step 2) after processed is put into alkaline etching slot, free alkali concentration is 35-60g/L in the alkaline etching slot,
AL3+For concentration 60g/L hereinafter, temperature is 50-65 DEG C, the alkaline etching time is 4-10min, and second wash is carried out after alkaline etching.
(4) stain ash disposal is gone
Aluminium section bar of the step 3) after processed is neutralized with acid at room temperature, a concentration of 150-200g/L of free acid, acid
Third time washing is carried out after neutralization, then cleans and impregnate 4-8min with room temperature pure water respectively, and 50-65 DEG C of hot pure water is cleaned again
It impregnates 5-10min and is cleaned with room temperature pure water and impregnate 4-8min.
(5) major trough electrophoresis
Aluminium section bar of the step 4) after processed is slowly put into electrophoresis major trough, has electrophoretic paint, aluminium section bar complete in electrophoresis tank
It being powered japanning after submergence 30s, colouring, the solid ingredient of paint is 6-8g/L, toner 1-3kg, PH 5.8-8.0 in the electrophoresis tank,
Amine value is 0.2-0.4, and electrophoresis temperature is 20-30 DEG C, 350-1000us/cm when 25 DEG C of conductivity, time 60-220s, and voltage is
90-180v；
(6) drip-dry after the 4th washing and the 5th washing of the aluminium section bar by step 5) after processed, the drip-dry temperature
Degree is 10-30 DEG C, time 5-60min, and aluminium section bar has certain gradient, drip-dry area to keep clean, dry and comfortable, dustless in drip-dry area
Angstrom, the material of rear process cannot be passed over directly from without the aluminium section bar that dry during drip-dry.
(7) the roasting solidification of stove
Aluminium section bar after drip-dry is put into curing oven to cure, furnace temperature is 170-200 DEG C, hardening time 10-
40min, it is to be cooled under room temperature in the areas Xie Jia to open fire door lifting aluminium section bar later, and frame processing is unloaded by lower row's work；The room temperature
It can be 18-38 DEG C, the room temperature is 20-30 DEG C；The first wash, the second wash, third time washing, institute
It is to clean 4-8min using tap water at normal temperature to state the 4th washing and described 5th time washing, is made to the impurity that preceding process is brought
Removing is handled.
Aluminium section bar is using electrophoretic paint made from the embodiment 2-4 in the present invention through above-mentioned easy pole electrophoresis production technology processing
The performance test pair for the aluminium section bar that obtained aluminium section bar is obtained with other general electrophoresis process containing oxidation and tinting steps
According to as described in following table one：
Table one
The electrophoretic paint obtained of the embodiment of the present invention 2-4 produces work through above-mentioned easy pole electrophoresis it can be seen from above-mentioned table 1
Skill handles aluminium section bar, by adjusting the composition and preparation method of the electrophoretic paint in wherein electrophoresis tank, is prepared using described
Electrophoretic paint is processed aluminium section bar, can save anodic oxidation and colour this two high energy consumption processes, not only energy-saving ring
It protects, reduces the discharge of waste water, also greatly shorten the production time, compared with general electrophoresis production technology, technology controlling and process is good
Well, anti-corrosion and good weatherability, cost reduction, uniform color are bright-coloured colorful.
It should be noted that embodiment described above is only used for explaining the present invention, do not constitute to any of the present invention
Limitation.If the spirit and scope of the present invention are not departed to the various changes or modifications of the present invention, if these modification and variations
Belong within the scope of the claim and equivalent technologies of the present invention, then the present invention is also intended to include these modification and variations.
Claims (9)
1. a kind of aluminium section bar electrophoretic paint, which is characterized in that the electrophoretic paint includes following raw material：Acrylic acid, methacrylic acid
Methyl esters, butyl acrylate, hydroxyethyl methacrylate, glycerin monomethyl acrylic ester, trimethylol propane trimethyl acrylic acid
Ester, ethoxyquin trimethylol-propane trimethacrylate and ethoxylated bisphenol A dimethylacrylates.
2. a kind of aluminium section bar electrophoretic paint according to claim 1, which is characterized in that the electrophoretic paint each component is by weight
Percentages include：Acrylic acid 2-4%, methyl methacrylate 10-20%, butyl acrylate 20-30%, hydroxyethyl methacrylate
Ethyl ester 6-10%, glycerin monomethyl acrylic ester 6.5-12.5%, trimethylol-propane trimethacrylate 3-7%, ethoxy
Change trimethylol-propane trimethacrylate 5-9% and ethoxylated bisphenol A dimethylacrylates 2.5-6.5%.
3. a kind of aluminium section bar electrophoretic paint according to claim 1 or 2, which is characterized in that further include in the electrophoretic paint
Polymerisation buffering solvent, amino resins, peroxidized t-butyl perbenzoate and chromium sulfate.
4. a kind of aluminium section bar electrophoretic paint according to claim 3, which is characterized in that the buffering solvent includes isopropyl
Alcohol and ethylene glycol ethyl ether.
5. a kind of aluminium section bar electrophoretic paint according to claim 4, which is characterized in that by weight percentage, described different
Propyl alcohol is 1-3%, ethylene glycol ethyl ether 1-3%, amino resins 10-24%, peroxidized t-butyl perbenzoate 0.8-1.6% and sulfuric acid
Chromium 1.2-2.4%.
6. a kind of preparation method of aluminium section bar electrophoretic paint according to claim 5, which is characterized in that including following step
Suddenly：
1) corresponding proportioning is pressed by acrylic acid, methyl methacrylate, butyl acrylate, hydroxyethyl methacrylate, glycerine list first
Base acrylate, trimethylol-propane trimethacrylate, ethoxyquin trimethylol-propane trimethacrylate and ethoxy
Change bisphenol a dimethacrylate and is added to the reaction vessel equipped with isopropanol, ethylene glycol ethyl ether and the chromium sulfate accordingly matched
It is interior, under the catalysis of the catalyst peroxidized t-butyl perbenzoate accordingly matched, it is stirred to react 8-16h；
2) when the temperature in step 1) being down to 50-80 DEG C, it is anti-that dimethylaminoethanol progress saponification is added into reaction vessel
It should be at water solubility；
3) amino resins is added into step 2), adds the viscosity and solid content of solvent adjustment reaction mixture, is sufficiently stirred
2-6h is to get to the electrophoretic paint.
7. preparation method according to claim 6, which is characterized in that adjust used in viscosity and the solid content of reaction mixture
Solvent be the isopropanol and the ethylene glycol ethyl ether.
8. a kind of aluminium section bar, which is characterized in that the aluminium section bar uses aluminium profiles timber-used as claimed in any one of claims 1 to 6
Electrophoretic paint is prepared through electrophoretic process.
9. a kind of aluminium section bar according to claim 8, which is characterized in that the electrophoresis step in the processing of the aluminium section bar
In, include the electrophoretic paint in electrophoresis tank, and the solid ingredient of paint is 6-8g/L, the PH of toner 1-3kg, tank liquor are 5.8-8.0,
Amine value is 0.2-0.4, and electrophoresis temperature is 20-30 DEG C, 350-1000us/cm when 25 DEG C of conductivity, time 60-220s, and voltage is
90-180V。
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| CN201810536411.0A CN108795204B (en) | 2018-05-30 | 2018-05-30 | Electrophoretic paint for aluminum profile, preparation method of electrophoretic paint and aluminum profile prepared through electrophoresis |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810536411.0A CN108795204B (en) | 2018-05-30 | 2018-05-30 | Electrophoretic paint for aluminum profile, preparation method of electrophoretic paint and aluminum profile prepared through electrophoresis |
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| CN108795204B CN108795204B (en) | 2020-10-09 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109825155A (en) * | 2018-12-29 | 2019-05-31 | 安徽鑫发铝业有限公司 | A kind of resistance electrophoretic aluminium section of anti-corrosion and preparation method thereof |
| CN110042455A (en) * | 2019-04-15 | 2019-07-23 | 常州凯泽环保科技有限公司 | The manufacture craft of sheet metal component |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109825155A (en) * | 2018-12-29 | 2019-05-31 | 安徽鑫发铝业有限公司 | A kind of resistance electrophoretic aluminium section of anti-corrosion and preparation method thereof |
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Also Published As
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|---|---|
| CN108795204B (en) | 2020-10-09 |
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